Allow Setting The Depth On wp_list_categories

[intoxination]

Attached is a path to add a depth query argument for wp_list_categories. It defaults to 0 which will walk the entire hierarchy. If hierarchical=false then the flat list is given and depth is ignored.

It looks like this has been "Mostly" implemented with one minor change.

Change line 292 to;

$depth = $rdepth?; Walk requested depth (0 being full depth).

This way the user can actually specify the depth they want it to be walked via the argument. Otherwise it was just 0 or -1 which doesn't actually do what this RFE had intended.

(Heres the diff since I'm not sure how you guys want it..)

[palamedes]$ diff category-template.php category-template.php.old
253c253

< 'echo' => 1, 'depth' => 0

---

'echo' => 1

292c292

< $depth = $rdepth?; Walk requested depth (0 being full depth).

---

$depth = 0; Walk the full depth.

Note: the post got corrupted when I submitted it. I'll attach a file with the diff.

Hrmm don't have permission to.. okay lets try this;

diff category-template.php category-template.php.bak 

253c253
<               'echo' => 1, 'depth' => 0
---
>               'echo' => 1

292c292
<                       $depth = $r['depth'];  // Walk requested depth (0 being full depth).
---
>                       $depth = 0;  // Walk the full depth.

Duplicates #2461. Patches are pretty much identical too =)